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Question:- What is focal length of this curved surface.​

Answer»

Here is the solutionExplanation:Equivalent POWER of COMBINATION, P eq =2P L +P M =2(μ−1)( R1 )+0The REQUIRED focal length, f=− P eq 1 =− 2(μ−1)R =− 2(1.5−1)10 =−10cm



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